We're not supposed to care. We're supposed to grow older, wiser, and all the more wrinkled before we expire in our sleep during some Viagran marathon. And yet. So many salves, unguents, and mystical goops promise to slow down the aging process that you've got to think some of them might actually help you look a little younger for a little longer. We isolated four of the most common active ingredients in today's antiaging market and asked Beverly Hills dermatologist Harold Lancer if they're any good. The good news: All of them actually work. We were surprised, too.

Polyphenols

What they do: Calm inflammation (redness) and help reduce the swelling (puffiness) that can result from environmental stress (sun damage, pollution).

Naturally found in: Green tea and grapes.

Also found in: Davi SPF 15 Lotion ($49).

Coenzyme Q10

What it does: Binds to harmful waste products in your skin and pushes them to the surface to shed. Also helps repair damaged skin cells. Promotes smoother, less saggy skin.